(!) instruments, etc.): firstly, the imperfection of rock samples obtained through rotary drilling, and the difficulty of compiling detailed (•>: cross-sections of strata, and secondly, the absorption by certain strata of the liquid clay solution pumped into the borehole during American drilling, as a result of which the return flow of this solution (circulation) is not obtained...
[34—35] ...Since the rations received by Persian subjects were completely insufficient for them, and the salaries obtained were not even enough to feed themselves, the Persian-subject workers—tarring workers, workers in drilling crews, and other workers, for whom service here had lost all meaning and significance, began to abandon their posts, leaving either for their homeland or for field work, where their labour was paid at high rates and in kind. As a result, we were forced to shut down, owing to the mass exodus of tarring workers and drilling crew workers, approximately 700 operating boreholes, and more than 40 boreholes that were in the process of drilling...
[35] ...How badly this shortage of qualified workers affects the work of our oil fields can be seen from the example of the Surakhan district alone, where we have 10 completed boreholes with expected high productivity (apart from two boreholes), which, however, we cannot put into operation owing to the shortage of carpenters and locksmiths.
The extreme shortage of transport means also affects the course of work in the oil fields most harmfully...
...And we have not a few cases where, for many days and even several weeks, we were unable, owing to an insufficient number of transport means, to convey several dozen barrels of cement or some heavy tool from one district to another neighbouring district, to the point of destination. And such deficiencies affect the entire oil economy harmfully, where much equipment has not been repaired over recent years owing to lack of materials and requires significant repair. Especially harmful is their influence on the course of drilling...
...It is sufficient to point out that we are threatened with a shutdown of compressors due to lack of packing, a reduction in night tarring and generally in night work due to lack of electric light bulbs.
The fall in labour productivity has even greater significance...